Conductor support



Patented July 21, 1936 oonnuo'roa surron'r 'Floyd G. Bovard, Akron, Ohio, assignor to The Ohio Brass Company, ration of New Jersey Mansfield, Ohio, a corpo- Application May 29, 1935, Serial No. 23,985

1 Claim.

This invention relates to suspension clamps for electrical transmission lines and has for one of its objects the provision of a clamp for compara tively light lines that shall be simple and economical t omanufacture, easy to install and eificient The invention is exemplified by the combination and arrangement of parts shown in the accompanying drawing and'described in the following specification, pointed out in the appended claim.

In the drawing:

Fig. 1 is an elevation with parts in section showing one embodiment of the present invention.

Fig. 2 is a section on lin 2-2 of Fig. 1.

Fig. 3 is a view similar to Fig. 2 showing a slightly modified form of the invention.

The clamp as illustrated in the drawing comprises a body or seat member 10 curved downwardly at its opposite ends to avoid an abrupt shoulder at the point where the cable leaves the seat and to provide for the sag angle of the cable as it leaves its point of support. The seat is transversely curved, as indicated at H in Fig. 2, to conform to the curvature of the supported cable.

At the mid point of the seat, the side walls of the cable seat are provided with pockets l2 which cut entirely through the side walls, as indicated at l3 in Fig. 2, and provide shoulders M for receiving supporting lugs IS on a yoke member 16. The lugs l5 and shoulders M are are shaped so as to provide a supporting trunnion upon which the seat In may various angular positions of the cable and to permit vibration waves to pass the support without material interruption, such as would cause destructive vibration of the cable relative to its supporting seat. The arms of the supporting yoke 16 are connected by a cross member 11 at the lower end of the yoke. This connection is important as it prevents spreading of the lower end of the yoke and holds the lugs l5 in place in their seats formed by the pockets l2. In order that the cross member I! may be effective in preventing spreading of the yoke at thepintles, it is located as closely adjacent the pintles as practical without interfering with the normal pivotal movement of the seat member In. It will be seen from Figs. 2 and 3 that the cross member I1 is arcuate in shape and substantially concentric with the cable, as this shape is the most effective in holding the yoke from spreading without interfering with the seat member. It is important from the manufacturing standpoint that the pockets extend entirely through the seat l0 so as to leave an opening through the side walls. The seat I!) may be a malleable casting and the opening can be more accurately cored in a green sand mold if it extends entirely through the side wall than if it were closed at its inner side because there are no corners for the formation of fillets of iron or in which the sand might burn. Furthermore, where the openings extend entirely through, it is possible to pass a tool transversely of the seat member through the aligned openings to finish the bearing faces I4 which rest upon the pintles l5. It will be seen that the pintles 15 can be moved upwardly into their pockets from the lower side of the seat member.

In order to retain the yoke IS in place, it is provided with stops l8 which are beveled on their upper ends and provided with square shoulders on the lower ends. upwardly into position, the arms will spring outwardly a sufficient amount to permit the lugs 18 to pass the bridge bars l9 above the pockets l2, and after the lugs 18 pass the top of the bridge bars the arms will the yoke in place. This is especially valuable in preventing loss or separation of the parts during shipment. When the device is once installed,

the side walls of As the yoke i6 is pressed 20 spring inwardly, thus locking 25 the lugs are not so essential since the seat is held in position by the weight of the cable.

The cable is held in its seat by means of a keeper piece 2| which is clamped upon the top of the cable by J or U-bolts 22. The seat member I0 is provided with lugs 23 for receiving the U- bolts and nuts 24 are threaded on the lower ends of the bolts to clamp the keeper piece against the cable. A clevis pin 25 connects the upper ends of the yoke arms and provides means for supporting the clamp. The upper edge of the bridge bars I9 are curved about the center of the pivotal support for the seat to permit rocking of the seat upon its support without intereference by the lugs l8 so that the lugs are closely adjacent the upper edges of the bridge bars for all positions of the seat relative to the supporting yoke. The pintles l5 are located closely adjacent the cross bar I! so that there can be no danger of the arms of the yoke bending outwardly to dislodge the pintles from their supporting shoulders. The supporting surfaces of the pintles, as will be seen from Fig. 2, are much closer to the cross bar 1'7 than they are free ends of the yoke arms. This arrangement makes it possible to spring the arms outwardly a sufficient amount to permit the lugs Hi to pass the bars l9 but assures against spreading of the yoke under load and.

consequent dropping of the conductor.

In the modification shown in Fig. 3, the bridge at 26 are placed outside I claim:

A conductor support comprising an elongated seat member channel shaped in cross section; the

open at their lower ends bGIOW SS/IdVShOUIdBI'S, a. 

